<?php
/*
	+-----------------------------------------------------------------------------+
	| ILIAS open source                                                           |
	+-----------------------------------------------------------------------------+
	| Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
	|                                                                             |
	| This program is free software; you can redistribute it and/or               |
	| modify it under the terms of the GNU General Public License                 |
	| as published by the Free Software Foundation; either version 2              |
	| of the License, or (at your option) any later version.                      |
	|                                                                             |
	| This program is distributed in the hope that it will be useful,             |
	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
	| GNU General Public License for more details.                                |
	|                                                                             |
	| You should have received a copy of the GNU General Public License           |
	| along with this program; if not, write to the Free Software                 |
	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
	+-----------------------------------------------------------------------------+
*/


/**
* Utility class to form select boxed for fixed meta data attributes
*
* @author Stefan Meyer <smeyer@databay.de>
* @package ilias-core
* @version $Id: class.ilMDUtilSelect.php 20110 2009-06-03 14:44:55Z wrandels $
*/
class ilMDUtilSelect
{
	/**
	 * Prepare a meta data language selector 
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getLanguageSelect($a_selected,$a_name,$prepend = array())
	{
		include_once 'Services/MetaData/classes/class.ilMDLanguageItem.php';

		global $lng;

		foreach(ilMDLanguageItem::_getPossibleLanguageCodes() as $code)
		{
			$tmp_options[$code] = $lng->txt('meta_l_'.$code);
		}
		asort($tmp_options,SORT_STRING);

		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}
		$options = array_merge($options,$tmp_options);
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}

	/**
	 * Prepare a meta general structure selector
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getStructureSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Atomic','Collection','Networked','Hierarchical','Linear');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $lng->txt('meta_'.strtolower($item));
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta lifecycle status selector 
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getStatusSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Draft','Final','Revised','Unavailable');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $lng->txt('meta_'.strtolower($item));
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta lifecycle status selector 
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getRoleSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Author','Publisher','Unknown','Initiator','Terminator','Editor','GraphicalDesigner','TechnicalImplementer',
					   'ContentProvider','TechnicalValidator','EducationalValidator','ScriptWriter','InstructionalDesigner',
					   'SubjectMatterExpert','Creator','Validator');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $lng->txt('meta_'.strtolower($item));
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta technical os selector 
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getOperatingSystemSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('PC-DOS','MS-Windows','MAC-OS','Unix','Multi-OS','None');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta technical browser selector 
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getBrowserSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Any','NetscapeCommunicator','MS-InternetExplorer','Opera','Amaya','Mozilla');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta technical format selector 
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getFormatSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng,$ilDB;

		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}


		// In case an index is defined on field il_meta_format, this group by
		// statement takes advantage of it to improve the performance of the query.
		$query = "SELECT format as forma from il_meta_format GROUP BY format LIMIT 200";
		$res = $ilDB->query($query);
		if(!$res->numRows())
		{
			return '';
		}
		while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
		{
			if(strlen($row->forma))
			{
				$options[$row->forma] = substr($row->forma,0,48);
			}
		}
		
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta technical duration selector 
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getDurationSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}
		
		$items = array(15 => '15 '.$this->lng->txt('minutes'),
					  30 => '30 '.$this->lng->txt('minutes'),
					  45 => '45 '.$this->lng->txt('minutes'),
					  60 => '1 '. $this->lng->txt('hour'),
					  90 => '1 '. $this->lng->txt('hour').' 30 '.$this->lng->txt('minutes'),
					  120 => '2 '.$this->lng->txt('hours'),
					  180 => '3 '.$this->lng->txt('hours'),
					  240 => '4 '.$this->lng->txt('hours'));

		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational interactivity type 
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getInteractivityTypeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Actice','Expositive','Mixed');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational learning resource type 
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getLearningResourceTypeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Exercise','Simulation','Questionnaire','Diagram','Figure','Graph','Index',
					   'Slide','Table','NarrativeText','Exam','Experiment','ProblemStatement','SelfAssessment','Lecture');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational interactivity level
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getInteractivityLevelSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array(1 => 'VeryLow',2 => 'Low',3 => 'Medium',4 => 'High',5 => 'VeryHigh');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational semantic density
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getSemanticDensitySelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array(1 => 'VeryLow',2 => 'Low',3 => 'Medium',4 => 'High',5 => 'VeryHigh');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational intended end user role
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getIntendedEndUserRoleSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Teacher','Author','Learner','Manager');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta context
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getContextSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('School','HigherEducation','Training','Other');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}


	/**
	 * Prepare a meta location type
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getLocationTypeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('LocalFile','Reference');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational difficulty
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getDifficultySelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array(1 => 'VeryEasy',2 => 'Easy',3 => 'Medium',4 => 'Difficult',5 => 'VeryDifficult');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta educational typical age range
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getTypicalAgeRangeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}
		for($i = 1; $i < 100 ; $i++)
		{
			$items[$i] = $i;
		}
		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}

	/**
	 * Prepare a meta educational typical learning time
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getTypicalLearningTimeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}
		$items = array(15 => '15 '.$this->lng->txt('minutes'),
					  30 => '30 '.$this->lng->txt('minutes'),
					  45 => '45 '.$this->lng->txt('minutes'),
					  60 => '1 '. $this->lng->txt('hour'),
					  90 => '1 '. $this->lng->txt('hour').' 30 '.$this->lng->txt('minutes'),
					  120 => '2 '.$this->lng->txt('hours'),
					  180 => '3 '.$this->lng->txt('hours'),
					  240 => '4 '.$this->lng->txt('hours'));

		foreach($items as $key => $item)
		{
			$options[$key] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta rights costs
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getCostsSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Yes','No');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta rights copyright and other restrictions
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getCopyrightAndOtherRestrictionsSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Yes','No');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}
	/**
	 * Prepare a meta rights copyright and other restrictions
	 * All possible entries in meta_format are shown
	 *
	 * @param string Checked item
	 * @param string Name of form variable.
	 * @param array  array(value => 'string') of first item. E.g: array(0,'-Please select-')
	 *
	 * @return string Complete html select
	 */
	function _getPurposeSelect($a_selected,$a_name,$prepend = array())
	{
		global $lng;

		$items = array('Discipline','Idea','Prerequisite','EducationalObjective','AccessibilityRestrictions',
					   'EducationalLevel','SkillLevel','SecurityLevel','Competency');
		
		foreach($prepend as $value => $translation)
		{
			$options[$value] = $translation;
		}

		foreach($items as $item)
		{
			$options[$item] = $item;
		}
		return ilUtil::formSelect($a_selected,$a_name,$options,false,true);
	}


}